Research question: how to find the absolute uncertainty of a conical flask? Variables: Independent variable: volume of water to be measured Dependent variable: mass of water Controlled variable: temperature wind speed type of chemical solution (water) Apparatus: A 100 mL conical flask A 4 decimal place electronic balance Distilled water A 250 mL beaker A dropper Tissue paper Procedure: 1) The conical flask was weighted with the balance
Free Erlenmeyer flask Density Laboratory glassware
Experimental Chemistry In this topic‚ you will learn: www.revision-notes.co.cc Hazard Warning Labels www.revision-notes.co.cc Measurement: Mass‚ Volume‚ Time and Temperature www.revision-notes.co.cc www.revision-notes.co.cc Collection of Gases www.revision-notes.co.cc Identification of Gases www.revision-notes.co.cc The Particulate Nature of Matter In this topic‚ you will learn: www.revision-notes.co.cc States of Matter Kinetic Theory www.revision-notes
Premium Chemistry Chemical reaction Chemical substance
Physiology 2401 Dr. Denyse Jones 02/02/2012 Objective: The objective of this experiment is to perform the simulation of the movement of solutes from a higher concentration to a lower concentration within a given amount of time. The goal of the exercise is to provide a simulation for the process of the facilitated diffusion of glucose through a selectively permeable membrane. Introduction: Experiment #1 and #2 are meant to show the processes of Simple and Facilitated diffusion. Both the
Premium Diffusion Molecular diffusion Semipermeable membrane
Experimental Project Several college students are involved in Greek life‚ sports‚ clubs‚ programs‚ organizations‚ or school events. Every student is encouraged to join extracurricular activities because it helps the student to build an identity and it boosts up the resume. After a student graduates‚ they must be able to sell themselves to big businesses‚ graduate programs‚ or other job opportunities. Since the job market and education programs are very competitive‚ grades will not be sufficient
Premium Education High school College
Laboratory #1 Introduction to Laboratory Techniques Sean Pence Jackie Butler September 6‚ 2012 September 13‚ 2012 Abstract: This lab contains four different experiments. All four experiments focus on proper laboratory techniques. The reasoning behind this lab was to become familiar with lab equipment‚ the proper usage of lab equipment‚ and how to correctly take data and notes. The first experiment of this lab was to determine the volume of water in various types of equipment. The second experiment was to
Premium Water Fahrenheit Temperature
ERROR ANALYSIS Errors VS Mistakes Error Error usually means that the person who committed it did something wrong because they thought wrongly and judged incorrectly. It is used for formal situations and is more serious since it is usually a more important problem that occurred due to the misjudgment. It is more technical and formal. Mistake Mistake refers to something that is more common. An example is mistaking salt from sugar‚ it is a common mistake and everyone makes it sometimes
Free Linguistics Language acquisition Verb
A fundamental characteristic of experimental approaches in relation to psychological studies is that researchers can observe and analyse certain behaviours in an environment of that they can control. By exposing participants to certain treatments or conditions‚ researchers are able to attain identification of causality. There are two primary designs in which experimenters can construct said treatments or conditions. In a “within-subjects” design experiment‚ all participants are exposed to every
Premium Experimental design Design of experiments Experiment
Experiment 1 Cyanobacteria Oxygen Production Through Photosynthesis Date Performed: September 2‚ 2014 I. Introduction a. Background Cyanobacteria or blue green algae are renowned for their tolerability and susceptibility even in wide range of environmental conditions‚ a characteristic of many primitive organisms. CNB are believed to be the agents of autotrophic origin of life thus they probably represent the survivors of the earliest photosynthetic plants‚ along with photosynthetic and chemosynthetic
Premium Photosynthesis Cyanobacteria Algae
Trial and error is an experimental method of problem solving‚ repair‚ tuning‚ or obtaining knowledge. "Learning doesn’t happen from failure itself but rather from analyzing the failure‚ making a change‚ and then trying again." This approach can be seen as one of the two basic approaches to problem solving and is contrasted with an approach using insight and theory. However‚ there are intermediate methods which for example‚ use theory to guide the method‚ an approach known as guided empiricism.
Premium Knowledge Problem solving Error
Experiment 1: The Effects of Coal Mining Coal mining‚ particularly surface mining‚ leads to large areas of land being temporarily disturbed. The mine workings collect and conduct water that is in contact with the widespread pyrite‚ a mineral that produces iron and sulfuric acid when exposed to air and water. In this lab‚ you will see first-hand the reasons why mine drainage can be harmful to the local drainage system if left untreated. Materials: (3) 100 mL Beakers 1 tsp. Crushed pyrite 1 tsp. Activated
Premium Coal Sulfur Carbon